City of Stormreach (http://www.wizards.com/default.asp?x=dnd/4tut/stormreach)

Everything from Steppin’ Jaq, Lurking Two-Maws, and Old Silverclaws, to the Abyssal Kraken, Zlortharkis! If you wish to add material from City of Stormreach into your 4th Edition campaign, this conversion provides it all.